Social and Behavioral Sciences Commons^™

Identifying Social Influence In Networks Using Randomized Experiments, Sinan Aral, Dylan Walker

Business Faculty Articles and Research

The recent availability of massive amounts of networked data generated by email, instant messaging, mobile phone communications, micro blogs, and online social networks is enabling studies of population-level human interaction on scales orders of magnitude greater than what was previously possible.1'2 One important goal of applying statistical inference techniques to large networked datasets is to understand how behavioral contagions spread in human social networks. More precisely, understanding how people influence or are influenced by their peers can help us understand the ebb and flow of market trends, product adoption and diffusion, the spread of health behaviors such as smoking and …

Creating Social Contagion Through Viral Product Design: A Randomized Trial Of Peer Influence In Networks, Sinan Aral, Dylan Walker

Business Faculty Articles and Research

We examine how firms can create word-of-mouth peer influence and social contagion by designing viral features into their products and marketing campaigns. To econometrically identify the effectiveness of different viral features in creating social contagion, we designed and conducted a randomized field experiment involving the 1.4 million friends of 9,687 experimental users on Facebook.com. We find that viral features generate econometrically identifiable peer influence and social contagion effects. More surprisingly, we find that passive-broadcast viral features generate a 246% increase in peer influence and social contagion, whereas adding active-personalized viral features generate only an additional 98% increase. Although active-personalized viral …

Sectoral Changes And The Increase In Women's Labor Force Participation, Rahşan Akbulut

Business Faculty Articles and Research

Throughout the second half of the 20th century, women in the United States decided to move increasingly into the labor market. This paper investigates the growth of the service sector as an explanation for the increase in women's employment. It develops an economic model that can account for the increase in women's employment and the growth of the service sector at the same time. A growth model with two sectors and a home production technology is constructed in order to quantitatively assess the contribution of sectoral productivity differences to the change in women's employment decision. The sectoral productivities are taken …

Creating Trust In Piranha-Infested Waters: The Confluence Of Buyer, Supplier And Host Country Contexts, Akbar Zaheer, Darcy Fudge Kamal

Business Faculty Articles and Research

Research by Dyer and Chu (2000) suggests that trust in exchange varies significantly across borders and influences the level of trust in cross-border exchange dyads. However, while a good start, research has yet to develop the concept that not only can the countries of origin of the partners to the exchange influence the nature and outcomes of dyadic trust, but also the country where the exchange dyad is located. Furthermore, such home and host country differences may interact with dyad-level differences in trust creation capabilities and influence trust violation and repair. We develop a framework and propositions along these lines.

Sweet Diversity: Colonial Goods And The Welfare Gains From Trade After 1492, Jonathan Hersh, Hans-Joachim Voth

Economics Faculty Articles and Research

When did overseas trade start to matter for living standards? Traditional real-wage indices suggest that living standards in Europe stagnated before 1800. In this paper, we argue that welfare rose substantially, but surreptitiously, because of an influx of new goods as a result of overseas trade. Colonial luxuries such as tea, coffee, and sugar transformed European diets after the discovery of America and the rounding of the Cape of Good Hope. These goods became household items in many countries by the end of the 18th century. We use three different methods to calculate welfare gains based on price data and …

International Comparisons Of Bank Regulation, Liberalization, And Banking Crises, Puspa Amri, Apanard P. Angkinand, Clas Wihlborg

Business Faculty Articles and Research

Purpose: The recurrence of banking crises throughout the 1980s and 1990s, and in the more recent 2008-09 global financial crisis, has led to an expanding empirical literature on crisis explanation and prediction. This paper provides an analytical review of proxies for and important determinants of banking crises − credit growth, financial liberalization, bank regulation and supervision.

Design/Methodology/Approach: The study surveys the banking crisis literature by comparing proxies for and measures of banking crises and policy-related variables in the literature. Advantages and disadvantages of different proxies are discussed.

Findings: Disagreements about determinants of banking crises are in part …

The Effects Of The Attacks Of 9/11 On Organizational Policies, Employee Attitudes And Workers’ Psychological States, Amy E. Hurley-Hanson, Cristina M. Giannantonio, Heidi Carlos, Jessica Harnett, Melanie Jetta, Madeline Mercier

Business Faculty Articles and Research

Problem statement: The attacks of September 11, 2001 (9/11) on the United States have had a profound effect on organizations and their employees. These effects occurred in the days and weeks immediately following the attacks, as well as in the years since the attacks occurred. In commemoration of the tenth anniversary of 9/11, this study focuses on the impact that the attacks of September 11, 2001 have had on organizational policies, employee attitudes and workers’ psychological states. Approach: Managers were surveyed regarding the effects of 9/11 on these issues. Results: The results of the study indicate that …